Speed-regulator for explosive-engines.



P. LANGER.

SPEED REGULATOR FOR EXPLOSIVE ENGINES.

APPLICATION FILED MABHB, 1905.

966,567, Patented Aug. 9, 1910.

2 SHEETS-SHEET 1.

WITNESSES; PAUL LANGER, JNVLNTOR ATTORNEY.

P. LANGER. SPEED REGULATOR FOR EXPLOSIVE ENGINES.

APPLICATION FILED MAE. 8, 1905.

Patented Aug. 9, 1910.

2'8HBETS-8HEET 2.

H mm Q mmm, 3 on +N 2 NM. 0 an a. hm an R 9w m E 9 NM 3 9 PAUL LAN ER,

A TTORNEY WITNESSES;

. TED STATES PATENT OFFICE.

SPEED-REGULATOR FOR EXPLOSIVE-ENGINES.

Specification of Letters Patent.

Patented Aug. 9, 1910.

Application filed March 8, 1905. Serial No. 248,956?- To all whom it mayconcern.

Be it known that I, PAUL LANGER, a subject of the Emperor ofAustria-Hungary, residing at Milwaukee, in the county of Milwaukee andState of Wisconsin, have invented certain new and useful Improvements inSpeed-Regulators for Explosive- Engines, of which the following is aspecification.

The object of the invention is to provide a gas engine with improved gasmixing valve and valve gear. tained by improving the regulatingstructure for a gas engine, as hereinafter described and as best shownin the accompanying drawing, in which,

Figure 1 is a vertical section-through the gas engine and valve gear,some of the parts being shown in elevation. Fig. 2 is a 'verticalsection throughthe mixing valve at the fully-closed position of bothvalves.

Fig. 3 is a similar view at the fully opened position of the valves,=Figs; 2 and,3.f ]t e'ing both shown at full load-.- Fig. @{isai planview of the adjusting: mechan-ism for the mixing valve.

Referring to the draiving, a engine I is shown with a valve body 2mounted thereage.

on, the valve gear 3 being operated by means of the eccentric 7, keyedto shaft 4 geared to The governor,

the main shaft, not shown. 5 operates upon the tripping cut-oftmechanism 6 indirectly by co-acting with its connections 60, operated bythe eccentric. 7. The connections 60 for the tripping cut-off are shownin diagram in Fig. 1 and are vibrated by the eccentric 7, they beingconnected thereto as a series of connected link- The cut-ofl mechanism 6is likewise linkage. The governor 5 aflects the vibration of the cut-offmechanism 6 by varying the location of the fulcrum point of the lever ofthe particular link of the series, to which it is connected.

Referring more particularly to Figs. 2 and 3, the main inlet valve 8 isoperated through its valve stem 9, by the cam levers 10, 1.1. The lever11 is pivotally mounted to the frame by pin 12, while the lever 10 ispivotally mounted on the frame by pin 13. The

This object is at I lever 10 is merely to avoid shock in starting orstopping the valve 8. The lever 11 is positively actuated by theeccentric rod 14, see Fig. 1, co-acting with the eccentric 7 in theusual manner. This operating mechanism is old and well known in puppetvalve gearing and will need no further description. The valve 8 is keptin its closed position by means of the spring 28 acting between theframe29 and a washer 30 mounted upon the end of a slide 31 attached tothe upper end of the valve stem 9 and operating in the frame 29.Continuing the reference to Figs. -2 and 3, the valve body 2 is coredout to form two annular chambers 15 and 16. The chamber 15 is connectedto a gas supply and is surrounded by the chamber 16 in communicationwith the atmosphere, these two annular chambers 15 and 16, communicatingwith the central mixing chamber 17 by ports 24, 25, 26. These ports arecontrolled by the mixing valve- 18. The mixing valve 18 is looselymounted upon the valve stem 9 of the main valve 8, while a spring 27,be-

"tween the lower end of the valve 18 and the upper side of valve 8,tends to keep the -val ve 18 in its upper closed position. The "inikingvalve 18 consists of two cylindrical portions 19 and 20, separated byapuppet Valve'portion 21. For convenience, the upper cylindrical portion19 is of smaller diameter than the lower cylindrical portion 20. Thecylindrical portions of the mixing valve control the admission of air tothe chamber 17, through the arcuate valve ports 22 and 23. These ports22 and 23 are designed to co-act with arcuate air admission ports 24,25, from the air chamber 16. The puppet valve portion 21 of the mixingvalve 18, controls the admission of gas to the chamber 17 from the gaschamber 15 through an annular port 26.

The tripping cut-oil mechanism 6 is positively operated by means ofconnections 60, see Fig. 1, to the strap of the eccentric 7. Theseconnections 60 operate tooscillate a roller 32, see Fig. 2, upon the endof the lever 33. The roller 32 co-acts with the cam surface 34 upon theend of a U-shaped lever 35, at whose opposite end is the trip 36, actingupon the collar-37 mounted upon the pivotally mounted near its middleportion upper end To adjust the mixing valve 18 circumfer entially so asto regulate the effective circumferential length of air inlet, thusregulating the amount of air to gas, an areshaped piece 42, see Figs. 2and 4, 1s splined by means of a screw 41, on the hollow valve stem 38 ofthe mixing valve 18. The areshaped piece 42 has therein an arcuate slot43, through which it is secured to the valve v casing 2 by a set screw44.

20 at which the trip 36 releases the collar 37,

The governor o operates in such a manner upon the connections 60, as tovary the limits of oscillating motion glven to the roller by itsactuating gear, thus changmg the polnt so as to allow the spring 27 toclose valve 18 to cut off both the gas and air inflow. Or

the action may be such as to prevent cut-ofi', as shown in Fig. 3. I

The operation of the device is as follows: The main valve 8 ispositively, continuously and unalteringly operated by the valve gear 3.The mixing valve 18 isalso opened by being moved downwardly through thetrip 36 by thevalve gear 3, and operates to cut.

oifthe fluid inflow, to the'chamber 17 by being moved upwardly by meansof the spring 27 whenever the trip 36 releases the collar 37. The shockof the seating of valve 18 is prevented by an air cushion which formsabove the valve between it and the casing constituting a dash pot. Theair from the air cushion is slowly released by suitable ports 45,leading from the dash pot chamber. These ports 45serve to connect thedash pot chamber with the space below the upper part of the mixing valve18, which upper part constitutes the piston of the dash pot. In theoperation of the dash pot, the air gradually escapes from above theupper piston portion of the mixing valve through the ports 45.

In order to adjust the mixing valve circumferentially to compensate fordifferent kinds of gas, the set screw 44 is loosened and the arc-shapedpiece 42 and valve 18 adjusted to the desired angular position. The setscrew 44 is then tightened and this holds the arc-shaped piece 42 andvalve 18 in the set angular position, but allows'the valve 18 to slidevertically by the spline and screw connection at 41.

The air inlet ports 24, 25, being separated by the annular gas port 26,form a structure insuring thorough mixture of the air and gas in thechamber 17. An annular projection 46 of the puppet valve portion 21,secures the vproportional openings of the annular gas" port 26 asreferred to the opening of air inlet ports 24, 25. It Wlll be seen thata tight closing of the annular gas port 26 is attained by the use of thepuppet valve portion 21 ofthe mixing valve 18, a balanced valvestructure being inadmissible for use with blast-furnace gas which may beused and which is relatively dirty as compared with It is to be notedthat the spring 27 which causes the mixing valve 18 to be cut off, needonly be of sufficient strength to counterbalance thegaspressureiuporf-the puppet valve 26. It ils'also to be noted that thecutting off is' not' accomplished by the main inlet valve'8, but onlyand entirely by means of the mixing valve '18, And this cutting offapplies proportionally and simultaneously to the air and. gas. It isalso to be noted that the operating means for the cutoff tripis"-independent of the operating means, for'th'e main valve, that is,the operating meansfon the cut-off trip is separate from the operatingmeans for the main valve, but both may be operated by the same 7eccentric 7.

In accordancewith the provisions of the patent statutes, I havedescribed the prin-' ciple of operation ofiny invention, together withthe apparatus whichI now consider to represent the best embodimentthereof, but I desire it to be understood that the apparatus shown ismerely illustrative and that the invention can be carried out by othermeans.

lVhat I claim as new and desire to secure by Letterslatent ofthe UnitedStates, is:

1. In an internal combustion engine, the combination of a ported valvecasing, a main valve therein, a secondvalve therein, means associatedand carried by said main valve for engaging other means associated vwith and carried by said second valve for .openmg sa d second valve,means on said casing for .releasingsaid two means from engagement forpermitting closing of said second valve, and means for impartingto saidreleasing means a, regular. periodic vibration. v

2. The combination, of' a ported member I and a reciprocatory memberhaving two piston valve portions and an intermediate puppet valveportion.

3. The combination of a ported member.

and a reciprocatory member having two piston valve portions and anintermediate puppet valve portion, the ports in the first member havingsuch relation to the second member that'all the valves have simulta-'neous. opening or. closing. motion.

4. A piston ,valve having a dash pot and a surrounding member having adash pot relief port registering with a port of the piston valve.

5. In an explosive engine, the combinameans foradjustin .b out theengine an "tion of a ported valve casing, a main valve therein, a secondvalve therem adjustable to vary the quality of explosive mixture,

said valve from Withwhile said valve is in place, and means for closingthe adjustable valve independently of the main valve.

= In testimony whereof I afiix my signature in presence of twoWitnesses.

Witnesses:

J OHN DAY, J 1 H. 0. CASE.

